Advantages and disadvantages of high power LED
The high-power LED is one of the most important means to achieve high flux. There are many advantages of using high-power LED lighting, there are also disadvantages. How to make good use of high-power LED is the key, the paper compared for high-power LED lighting products and traditional lighting products also discuss high lumen LED lighting in the area.

A history of the development of LED and potential LED since its birth 10 years brightness increased by 30 times, prices fell 10 times "Haitz" law of the rapid development. Ordinary high-brightness white led laboratory has reached the level of 100 lm / W to 50 lm / W high-power white LED has entered the commercial. In monochromatic light, red, yellow, blue, green, light efficiency constantly refresh the record, LED increasingly wide range of applications as a new light source, gradually attracted more attention and expectations.

The current distribution of the LED application was diversified in various industries, including instructions to display, backlight, lighting. Lighting is LED many applications with the most potential of the industry, with the LED luminous efficiency continues to improve and costs continue to decrease, the market is also growing in the possession of the entire field of lighting. Following the "next generation of lighting plan", "21st century lighting plan," Rainbow Plan "of the EU and South Korea's" Solid State Lighting Plan, 2003, China set up a National Semiconductor Lighting Project Group aims to consolidate resources, to enter the rapidly advancing LED lighting market. Liang-Hui Chen academicians forecast, according to the Chinese Academy of Engineering, China, in 2005 and 2015, the semiconductor lighting can be accumulated 400 billion kWh energy savings of 260 billion yuan in electricity charges for users to create a production value of 150 billion yuan to solve the employment of 100 million people.

, Semiconductor lighting energy savings each year will be more than the "Big Mac" - the annual generating capacity of the Three Gorges Power Station! LED energy-saving features, in the context of growing energy shortages, the development of LED lighting is the government proposed building savings the positive response of the type of society.

Second, the characteristics of high-power LED and compared with other light source LED is known as the "green light" well-deserved. In the lighting industry, compared with the traditional light source analysis, some aspects of the performance of the advantages of hard to replace: LED as a light source for illumination has the following advantages:

1, low power consumption: the luminous efficiency than equivalent incandescent brightness of 75lm / W LED power consumption reduced by about 80%;

2, long life: product life of up to 50,000 hours, 24 hours of continuous light can be used for seven years;

3, brightness and color control is easy: continuously adjustable brightness, high color purity, dynamic color conversion and digital control;

Flexible: Dimensions can be realized with the construction of an organic fusion to saw the light but not light;

5, environmental protection: no harmful metal mercury, infrared and ultraviolet radiation;

6, color: bright saturated and pure, without filter, available tune into a variety of different colors red, green and blue color elements, can be realized changing gradually change the effect of mixed light and excellent color effect. So many advantages, made us feel great efforts to promote the use of LED is a valuable work.

LED and other light sources is also a lack of respect, such as low white lighting color. White LED with yellow phosphor and Blu-ray, the color index is about 80. Also can be as general lighting, but for some color to distinguish high places inadequate. By increasing the appropriate red phosphor, the color rendering index increased to 90 or higher, but still have some gaps with the incandescent lamp 99, and its efficiency will be affected. By RGB color mixing processing can also improve color rendering, but need to do more work in the universal application, color rendering LED needed for the upgrade. As for the price is too high, a one-time investment, in fact, from comprehensive cost considerations, many occasions to use LED or significant cost savings.
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